Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:2601.14974

Comment on "Electrostatics-induced breakdown of the integer quantum Hall effect in cavity QED''

C. Ciuti, G. Scalari, J. Faist

cond-mat.mes-hallcond-mat.otherquant-phSubmitted Jan 21, 2026• Announced Jan 22, 2026
arXivHTMLPDF

Abstract

We comment on the preprint arXiv:2511.04744 by Andolina et al.
Comments
Comment on arXiv:2511.04744

Related papers

The Quantum of Electrostatic Action and the Quantum Hall Effect.

Robert L. P. Wadlinger, Geoffrey Hunter, Ludwik Kostro +1 more

Physics Essays•Jun 1, 1990•7 citations

Comment on “Multiparty secret sharing of quantum information via cavity QED”

Ying-Qiao Zhang, Shou Zhang

Optics Communications•Sep 8, 2006•1 citation

Electrostatics-induced breakdown of the integer quantum Hall effect in cavity QED

Gian Marcello Andolina, Zeno Bacciconi, Alberto Nardin +3 more

We address the prevailing theoretical explanation of the recently observed breakdown of the integer quantum Hall effect in a two-dimensional electron gas embedded in a metallic split-ring resonator. Within the same single-particle description of quantized Hall conductance, we compare previously proposed vacuum-induced transport modifications against an alternative mechanism that explains this breakdown in terms of non-chiral edge channels arising solely from electrostatic boundary effects. This direct comparison shows that for experimentally relevant parameters, the electrostatic contribution exceeds that of any vacuum-induced conductance modifications by many orders of magnitude and yields characteristic transport signatures and energy scales that align well with experimental observations. This finding sheds new light on this puzzling phenomenon, supporting an electrostatic rather than a vacuum-related interpretation that can be directly tested in experiments.

cond-mat.mes-hallCross-listedarXiv:2511.04744•Nov 10, 2025

The Quantum Hall Effect with electron-boson interaction is not exact

Karin Everschor‐Sitte, Matthias Sitte, Allan H. MacDonald

Bulletin of the American Physical Society•Mar 3, 2015•0 citations

Quantum phase transition between integer quantum Hall states of bosons

Tarun Grover, Ashvin Vishwanath

Bosonic integer quantum Hall (IQH) phases are a class of symmetry-protected topological (SPT) phases that, similar to the fermionic IQH states, support a quantized Hall conductance. They, however, require interactions for their realization. Here, we study quantum Hall plateau transitions between a trivial insulator and a bosonic IQH phase, in a clean system. Generically, we find an intervening superfluid phase. The presence of additional symmetries, however, can potentially lead to a direct transition between these phases. We employ a fermionic parton description that captures both the insulating phases as well as the transition between them. The critical theory is massless QED-3 with ${N}_{f}=2$ fermion flavors. The fermions have a surprisingly simple interpretation: they are vortices of the superfluid. Therefore, the universal conductivity at the transition, assuming it is continuous, equals the universal resistivity of Dirac fermions in QED-3. We also briefly comment on sigma model descriptions of the transition and the surface states of related three-dimensional SPT phases.

arXiv:1210.0907•Physical Review B•Jan 31, 2013•84 citations

Comment on the paper “Ground state instability in systems of strongly interacting fermions”

VICTOR A. KHODEL

Journal of Experimental and Theoretical Physics Letters•Feb 1, 1999•0 citations
We address the prevailing theoretical explanation of the recently observed breakdown of the integer quantum Hall effect in a two-dimensional electron gas embedded in a metallic split-ring resonator. Within the same single-particle description of quantized Hall conductance, we compare previously proposed vacuum-induced transport modifications against an alternative mechanism that explains this breakdown in terms of non-chiral edge channels arising solely from electrostatic boundary effects. This direct comparison shows that for experimentally relevant parameters, the electrostatic contribution exceeds that of any vacuum-induced conductance modifications by many orders of magnitude and yields characteristic transport signatures and energy scales that align well with experimental observations. This finding sheds new light on this puzzling phenomenon, supporting an electrostatic rather than a vacuum-related interpretation that can be directly tested in experiments.
Bosonic integer quantum Hall (IQH) phases are a class of symmetry-protected topological (SPT) phases that, similar to the fermionic IQH states, support a quantized Hall conductance. They, however, require interactions for their realization. Here, we study quantum Hall plateau transitions between a trivial insulator and a bosonic IQH phase, in a clean system. Generically, we find an intervening superfluid phase. The presence of additional symmetries, however, can potentially lead to a direct transition between these phases. We employ a fermionic parton description that captures both the insulating phases as well as the transition between them. The critical theory is massless QED-3 with Nf=2{N}_{f}=2Nf​=2 fermion flavors. The fermions have a surprisingly simple interpretation: they are vortices of the superfluid. Therefore, the universal conductivity at the transition, assuming it is continuous, equals the universal resistivity of Dirac fermions in QED-3. We also briefly comment on sigma model descriptions of the transition and the surface states of related three-dimensional SPT phases.